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Miscellaneous·2021·Easy

Seven white balls and three black balls are randomly placed in a row. What is the probability that no two black balls are placed adjacently?

Seven white balls and three black balls are randomly placed in a row. What is the probability that no two black balls are placed adjacently?

Options

  1. a.

    7/15

  2. b.

    8/15

  3. c.

    8/15

  4. d.

    13/15

    Correct answer

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